1. Patchew
  2. linux
  3. [PATCH v2 0/2] Enable audio on qcs9075-evk board.
  4. View patch

[PATCH v2 2/2] arm64: dts: qcom: qcs9075-evk: Add sound card

Mohammad Rafi Shaik posted 2 patches 3 months, 3 weeks ago
[PATCH v2 2/2] arm64: dts: qcom: qcs9075-evk: Add sound card
Posted by Mohammad Rafi Shaik 3 months, 3 weeks ago 
Add the sound card node with tested playback over max98357a
I2S speakers amplifier and I2S mic.

Introduce HS (High-Speed) MI2S pin control support.
The I2S max98357a speaker amplifier is connected via HS0 and I2S
microphones utilize the HS2 interface.

Signed-off-by: Mohammad Rafi Shaik <mohammad.rafi.shaik@oss.qualcomm.com>
---
 .../boot/dts/qcom/qcs9075-iq-9075-evk.dts     | 52 +++++++++++++++++++
 arch/arm64/boot/dts/qcom/sa8775p.dtsi         | 14 +++++
 2 files changed, 66 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/qcs9075-iq-9075-evk.dts b/arch/arm64/boot/dts/qcom/qcs9075-iq-9075-evk.dts
index ab161180d1d5..d073c6f95d4c 100644
--- a/arch/arm64/boot/dts/qcom/qcs9075-iq-9075-evk.dts
+++ b/arch/arm64/boot/dts/qcom/qcs9075-iq-9075-evk.dts
@@ -5,6 +5,7 @@
 /dts-v1/;
 
 #include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/sound/qcom,q6afe.h>
 #include <dt-bindings/regulator/qcom,rpmh-regulator.h>
 
 #include "qcs9075.dtsi"
@@ -21,6 +22,57 @@ aliases {
 	chosen {
 		stdout-path = "serial0:115200n8";
 	};
+
+	max98357a: audio-codec-0 {
+		compatible = "maxim,max98357a";
+		#sound-dai-cells = <0>;
+	};
+
+	dmic: audio-codec-1 {
+		compatible = "dmic-codec";
+		#sound-dai-cells = <0>;
+		num-channels = <1>;
+	};
+
+	sound {
+		compatible = "qcom,qcs9075-sndcard";
+		model = "qcs9075-iq-evk-snd-card";
+
+		pinctrl-0 = <&hs0_mi2s_active>, <&hs2_mi2s_active>;
+		pinctrl-names = "default";
+
+		hs0-mi2s-playback-dai-link {
+			link-name = "HS0 mi2s playback";
+
+			codec {
+				sound-dai = <&max98357a>;
+			};
+
+			cpu {
+				sound-dai = <&q6apmbedai PRIMARY_MI2S_RX>;
+			};
+
+			platform {
+				sound-dai = <&q6apm>;
+			};
+		};
+
+		hs2-mi2s-capture-dai-link {
+			link-name = "HS2 mi2s capture";
+
+			codec {
+				sound-dai = <&dmic>;
+			};
+
+			cpu {
+				sound-dai = <&q6apmbedai TERTIARY_MI2S_TX>;
+			};
+
+			platform {
+				sound-dai = <&q6apm>;
+			};
+		};
+	};
 };
 
 &apps_rsc {
diff --git a/arch/arm64/boot/dts/qcom/sa8775p.dtsi b/arch/arm64/boot/dts/qcom/sa8775p.dtsi
index 07ca6dd4f759..968730da180d 100644
--- a/arch/arm64/boot/dts/qcom/sa8775p.dtsi
+++ b/arch/arm64/boot/dts/qcom/sa8775p.dtsi
@@ -4711,6 +4711,20 @@ tlmm: pinctrl@f000000 {
 			gpio-ranges = <&tlmm 0 0 149>;
 			wakeup-parent = <&pdc>;
 
+			hs0_mi2s_active: hs0-mi2s-active-state {
+				pins = "gpio114", "gpio115", "gpio116", "gpio117";
+				function = "hs0_mi2s";
+				drive-strength = <8>;
+				bias-disable;
+			};
+
+			hs2_mi2s_active: hs2-mi2s-active-state {
+				pins = "gpio122", "gpio123", "gpio124", "gpio125";
+				function = "hs2_mi2s";
+				drive-strength = <8>;
+				bias-disable;
+			};
+
 			qup_i2c0_default: qup-i2c0-state {
 				pins = "gpio20", "gpio21";
 				function = "qup0_se0";
-- 
2.34.1
Re: [PATCH v2 2/2] arm64: dts: qcom: qcs9075-evk: Add sound card
Posted by Konrad Dybcio 3 months, 2 weeks ago 
On 6/16/25 9:04 AM, Mohammad Rafi Shaik wrote:
> Add the sound card node with tested playback over max98357a
> I2S speakers amplifier and I2S mic.
> 
> Introduce HS (High-Speed) MI2S pin control support.
> The I2S max98357a speaker amplifier is connected via HS0 and I2S
> microphones utilize the HS2 interface.
> 
> Signed-off-by: Mohammad Rafi Shaik <mohammad.rafi.shaik@oss.qualcomm.com>
> ---
>  .../boot/dts/qcom/qcs9075-iq-9075-evk.dts     | 52 +++++++++++++++++++
>  arch/arm64/boot/dts/qcom/sa8775p.dtsi         | 14 +++++
>  2 files changed, 66 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/qcs9075-iq-9075-evk.dts b/arch/arm64/boot/dts/qcom/qcs9075-iq-9075-evk.dts
> index ab161180d1d5..d073c6f95d4c 100644
> --- a/arch/arm64/boot/dts/qcom/qcs9075-iq-9075-evk.dts
> +++ b/arch/arm64/boot/dts/qcom/qcs9075-iq-9075-evk.dts
> @@ -5,6 +5,7 @@
>  /dts-v1/;
>  
>  #include <dt-bindings/gpio/gpio.h>
> +#include <dt-bindings/sound/qcom,q6afe.h>
>  #include <dt-bindings/regulator/qcom,rpmh-regulator.h>

'r'egulator < 's'ound>  
>  #include "qcs9075.dtsi"
> @@ -21,6 +22,57 @@ aliases {
>  	chosen {
>  		stdout-path = "serial0:115200n8";
>  	};
> +
> +	max98357a: audio-codec-0 {
> +		compatible = "maxim,max98357a";
> +		#sound-dai-cells = <0>;
> +	};
> +
> +	dmic: audio-codec-1 {
> +		compatible = "dmic-codec";
> +		#sound-dai-cells = <0>;
> +		num-channels = <1>;
> +	};
> +
> +	sound {
> +		compatible = "qcom,qcs9075-sndcard";
> +		model = "qcs9075-iq-evk-snd-card";
> +
> +		pinctrl-0 = <&hs0_mi2s_active>, <&hs2_mi2s_active>;
> +		pinctrl-names = "default";
> +
> +		hs0-mi2s-playback-dai-link {
> +			link-name = "HS0 mi2s playback";

"HS0 MI2S Playback", please, similarly below

lg otherwise

Konrad
Re: [PATCH v2 2/2] arm64: dts: qcom: qcs9075-evk: Add sound card
Posted by Dmitry Baryshkov 3 months, 3 weeks ago 
On 16/06/2025 10:04, Mohammad Rafi Shaik wrote:
> Add the sound card node with tested playback over max98357a
> I2S speakers amplifier and I2S mic.
> 
> Introduce HS (High-Speed) MI2S pin control support.
> The I2S max98357a speaker amplifier is connected via HS0 and I2S
> microphones utilize the HS2 interface.
> 
> Signed-off-by: Mohammad Rafi Shaik <mohammad.rafi.shaik@oss.qualcomm.com>
> ---
>   .../boot/dts/qcom/qcs9075-iq-9075-evk.dts     | 52 +++++++++++++++++++
>   arch/arm64/boot/dts/qcom/sa8775p.dtsi         | 14 +++++
>   2 files changed, 66 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/qcs9075-iq-9075-evk.dts b/arch/arm64/boot/dts/qcom/qcs9075-iq-9075-evk.dts
> index ab161180d1d5..d073c6f95d4c 100644
> --- a/arch/arm64/boot/dts/qcom/qcs9075-iq-9075-evk.dts
> +++ b/arch/arm64/boot/dts/qcom/qcs9075-iq-9075-evk.dts
> @@ -5,6 +5,7 @@
>   /dts-v1/;
>   
>   #include <dt-bindings/gpio/gpio.h>
> +#include <dt-bindings/sound/qcom,q6afe.h>
>   #include <dt-bindings/regulator/qcom,rpmh-regulator.h>
>   
>   #include "qcs9075.dtsi"
> @@ -21,6 +22,57 @@ aliases {
>   	chosen {
>   		stdout-path = "serial0:115200n8";
>   	};
> +
> +	max98357a: audio-codec-0 {

This wasn't sorted out properly.

> +		compatible = "maxim,max98357a";

No SD_MODE pin?

> +		#sound-dai-cells = <0>;
> +	};
> +
> +	dmic: audio-codec-1 {
> +		compatible = "dmic-codec";
> +		#sound-dai-cells = <0>;
> +		num-channels = <1>;

no enable GPIO, no vref-supply?

> +	};
> +
> +	sound {
> +		compatible = "qcom,qcs9075-sndcard";
> +		model = "qcs9075-iq-evk-snd-card";
> +
> +		pinctrl-0 = <&hs0_mi2s_active>, <&hs2_mi2s_active>;
> +		pinctrl-names = "default";
> +
> +		hs0-mi2s-playback-dai-link {
> +			link-name = "HS0 mi2s playback";
> +
> +			codec {
> +				sound-dai = <&max98357a>;
> +			};
> +
> +			cpu {
> +				sound-dai = <&q6apmbedai PRIMARY_MI2S_RX>;
> +			};
> +
> +			platform {
> +				sound-dai = <&q6apm>;
> +			};
> +		};
> +
> +		hs2-mi2s-capture-dai-link {
> +			link-name = "HS2 mi2s capture";
> +
> +			codec {
> +				sound-dai = <&dmic>;
> +			};
> +
> +			cpu {
> +				sound-dai = <&q6apmbedai TERTIARY_MI2S_TX>;
> +			};
> +
> +			platform {
> +				sound-dai = <&q6apm>;
> +			};
> +		};
> +	};
>   };
>   
>   &apps_rsc {
> diff --git a/arch/arm64/boot/dts/qcom/sa8775p.dtsi b/arch/arm64/boot/dts/qcom/sa8775p.dtsi
> index 07ca6dd4f759..968730da180d 100644
> --- a/arch/arm64/boot/dts/qcom/sa8775p.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sa8775p.dtsi
> @@ -4711,6 +4711,20 @@ tlmm: pinctrl@f000000 {
>   			gpio-ranges = <&tlmm 0 0 149>;
>   			wakeup-parent = <&pdc>;
>   
> +			hs0_mi2s_active: hs0-mi2s-active-state {
> +				pins = "gpio114", "gpio115", "gpio116", "gpio117";
> +				function = "hs0_mi2s";
> +				drive-strength = <8>;
> +				bias-disable;
> +			};
> +
> +			hs2_mi2s_active: hs2-mi2s-active-state {
> +				pins = "gpio122", "gpio123", "gpio124", "gpio125";
> +				function = "hs2_mi2s";
> +				drive-strength = <8>;
> +				bias-disable;
> +			};
> +
>   			qup_i2c0_default: qup-i2c0-state {
>   				pins = "gpio20", "gpio21";
>   				function = "qup0_se0";


-- 
With best wishes
Dmitry
Re: [PATCH v2 2/2] arm64: dts: qcom: qcs9075-evk: Add sound card
Posted by Mohammad Rafi Shaik 3 months, 3 weeks ago 

On 6/16/2025 4:54 PM, Dmitry Baryshkov wrote:
> On 16/06/2025 10:04, Mohammad Rafi Shaik wrote:
>> Add the sound card node with tested playback over max98357a
>> I2S speakers amplifier and I2S mic.
>>
>> Introduce HS (High-Speed) MI2S pin control support.
>> The I2S max98357a speaker amplifier is connected via HS0 and I2S
>> microphones utilize the HS2 interface.
>>
>> Signed-off-by: Mohammad Rafi Shaik <mohammad.rafi.shaik@oss.qualcomm.com>
>> ---
>>   .../boot/dts/qcom/qcs9075-iq-9075-evk.dts     | 52 +++++++++++++++++++
>>   arch/arm64/boot/dts/qcom/sa8775p.dtsi         | 14 +++++
>>   2 files changed, 66 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/qcom/qcs9075-iq-9075-evk.dts b/arch/ 
>> arm64/boot/dts/qcom/qcs9075-iq-9075-evk.dts
>> index ab161180d1d5..d073c6f95d4c 100644
>> --- a/arch/arm64/boot/dts/qcom/qcs9075-iq-9075-evk.dts
>> +++ b/arch/arm64/boot/dts/qcom/qcs9075-iq-9075-evk.dts
>> @@ -5,6 +5,7 @@
>>   /dts-v1/;
>>   #include <dt-bindings/gpio/gpio.h>
>> +#include <dt-bindings/sound/qcom,q6afe.h>
>>   #include <dt-bindings/regulator/qcom,rpmh-regulator.h>
>>   #include "qcs9075.dtsi"
>> @@ -21,6 +22,57 @@ aliases {
>>       chosen {
>>           stdout-path = "serial0:115200n8";
>>       };
>> +
>> +    max98357a: audio-codec-0 {
> 
> This wasn't sorted out properly.
>

Ack, will take care in next version.

>> +        compatible = "maxim,max98357a";
> 
> No SD_MODE pin?
> 
Yes, SD_MODE pin is always on in this specific qcs9075-iq-evk board hw.

No need to handle.

>> +        #sound-dai-cells = <0>;
>> +    };
>> +
>> +    dmic: audio-codec-1 {
>> +        compatible = "dmic-codec";
>> +        #sound-dai-cells = <0>;
>> +        num-channels = <1>;
> 
> no enable GPIO, no vref-supply?

On qcs9075-iq-evk boards the enable gpios and vref-spply is always on.
Not configurable from DT.

Thanks & best regards,
Rafi.
> 
>> +    };
>> +
>> +    sound {
>> +        compatible = "qcom,qcs9075-sndcard";
>> +        model = "qcs9075-iq-evk-snd-card";
>> +
>> +        pinctrl-0 = <&hs0_mi2s_active>, <&hs2_mi2s_active>;
>> +        pinctrl-names = "default";
>> +
>> +        hs0-mi2s-playback-dai-link {
>> +            link-name = "HS0 mi2s playback";
>> +
>> +            codec {
>> +                sound-dai = <&max98357a>;
>> +            };
>> +
>> +            cpu {
>> +                sound-dai = <&q6apmbedai PRIMARY_MI2S_RX>;
>> +            };
>> +
>> +            platform {
>> +                sound-dai = <&q6apm>;
>> +            };
>> +        };
>> +
>> +        hs2-mi2s-capture-dai-link {
>> +            link-name = "HS2 mi2s capture";
>> +
>> +            codec {
>> +                sound-dai = <&dmic>;
>> +            };
>> +
>> +            cpu {
>> +                sound-dai = <&q6apmbedai TERTIARY_MI2S_TX>;
>> +            };
>> +
>> +            platform {
>> +                sound-dai = <&q6apm>;
>> +            };
>> +        };
>> +    };
>>   };
>>   &apps_rsc {
>> diff --git a/arch/arm64/boot/dts/qcom/sa8775p.dtsi b/arch/arm64/boot/ 
>> dts/qcom/sa8775p.dtsi
>> index 07ca6dd4f759..968730da180d 100644
>> --- a/arch/arm64/boot/dts/qcom/sa8775p.dtsi
>> +++ b/arch/arm64/boot/dts/qcom/sa8775p.dtsi
>> @@ -4711,6 +4711,20 @@ tlmm: pinctrl@f000000 {
>>               gpio-ranges = <&tlmm 0 0 149>;
>>               wakeup-parent = <&pdc>;
>> +            hs0_mi2s_active: hs0-mi2s-active-state {
>> +                pins = "gpio114", "gpio115", "gpio116", "gpio117";
>> +                function = "hs0_mi2s";
>> +                drive-strength = <8>;
>> +                bias-disable;
>> +            };
>> +
>> +            hs2_mi2s_active: hs2-mi2s-active-state {
>> +                pins = "gpio122", "gpio123", "gpio124", "gpio125";
>> +                function = "hs2_mi2s";
>> +                drive-strength = <8>;
>> +                bias-disable;
>> +            };
>> +
>>               qup_i2c0_default: qup-i2c0-state {
>>                   pins = "gpio20", "gpio21";
>>                   function = "qup0_se0";
> 
>

Patchew 2.1-devel-b67e4c2

© 2016 - 2025 Red Hat, Inc.